Mask AI as a Photoshop Plugin

How do you save an actual mask when using Mask AI as a Photoshop Plugin? The user guide tells you to to select File > Save As, but there’s no such thing in the plugin. It seems there are no options for saving the mask itself. What am I missing?

Below you will see a snip of what I get when I select “Save As” under the file category. Do you not see the same thing? If you notice the file format PNG is the default entry. Essentially the software is telling you by hitting the save button you will be saving the mask. At the top of the window you will see the four options which will be saved depending on which one you choose. Saving the mask only is the third from the right option where it says “Mask Only”.

I see that on Windows, but not Mac OS.